Snowplow



F. A. LUND.

SNOWPLOW.

APPLICATION FILED OCT. 20. 1919.

Patented Aug. 2, 1921.

2 SHEETSSHEET l.

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FRANK A. L'UND, OF EARTLAND, WISCONSIN.

sNowrLow.

Application filed October 20, 1919. Serial No.

To all whom it may concern:

Be it known that I, FRANK A. LUND, a citizen of the United States, and resident of Hartland, in the county of Waukesha and State of Wisconsin, have invented certain new and useful Improvements in Snowplows; and I do hereby declare that the following is a full, clear, and exact description thereof. a

My invention pertains to new and useful improvements in snow-plows and has particular reference to attachments of this character for use on standard tractors.

The great majority of snow cleaningmachines are relatively expensive both to manufacture and to'operate, and the best of them are ineflicient as respects thorough cleaning 0 erations. The reasons for this are that t e snow plow proper is usually incorporated in and forms an integral part of a pro elling device, and-the arrangement is such that the plow cannot efiectively operate to perform its primary function.

It is therefore the principal object of this invention to provide a. snow-plow attachment which can be easily and quickly mounted upon a tractor or similar vehicle of standard design. The vehicle when the attachment is not mounted thereon may be used for its customary purposes, but as soon as the snow plow is secured to its front end, a most eificient cleaning machine results.

A. secondary object of the invention relates to the means for conveying the snow, and similar material when the machine is used other than as a snow plow, to a suitable receptacle or one side of the path of movement of the machine.

A further object is to provide a plow having the material collector so arranged as to readily ride over any obstructions which may be encountered during the operation of the machine.

With these and other objects in view, the invention consists in the novel features of construction, combination and arrangement of parts which will be hereinafter more particularly described and claimed and shown in the drawings wherein:

Figure 1 represents a side elevational view, partly in section of a snow cleaning machine constructed in accordance with my invention.

Fig. 2 is a front elevational view of the snow plow attachment.

Fig. 3 is a horizontal sectional view taken Specification of Letters Iatent.

-mner end having Patented Aug. 2, 1921. a arsse.

substantially on the lane of the line 3--3 of Fig. 1, andv P Fig. 4 is a detail vertical sectional view on the planeof the line 44 of Fig. 1.

The preferred type of vehicle on which the attachment is removably mounted is a tractor A. which includes side frame bars 1 of channeled members, the flanges 2 of whlch are extended in opposite directions, and a front axle support 3 to which a front axle 4 is pivoted for vertical swingmg movement by a bolt 5.

The attachment consists broadly of a materlal or snow collector in the form of a scoop shell 6 and a conveyer 7. The latter includes a circular housing 8 having one side open and the other closed by a fiat wall 9, the annular wall ofthe casing having an outlet 10. Journaled centrally of the flat wall 9 is a drive shaft projects on either side of said wall, the

fan blades 12 extending radially therefrom, while its outer end is provided with a bevel gear 13. The blades are preferably right angular in cross section as indicated in Fig. 3.

Extending from the closed side of the.

cures the bracket and the casing 7 against.

vertically and laterally shifting and retains the latter substantially vertical. Braces 16 and 17 extend from the top and bottomportions respectively of the casing 7 and ave their ends connected with the tractor A, the brace 16 being secured thereto as at 18 by means of'a bolt extending through an opening which is normally provided in the axle support 3. The free end of the brace 17 is detachably connected to said axle support by means of the axle pivot bolt 5. A mounting1 of considerable strength and rigidity is t us procured.

The shaft 11 is driven through the bevel gear 13 by means of a bevel gear 13' mounted on a transverse shaft 19, this shaft being journaled in bearings formed in the arms of the U-shaped bracket 14. A pulley 20 carried by one end of the shaft 19 is belted spaced apart a as at 21 to the fly wheel 22 of the engine of the tractor.

The scoop shell 6 is pivoted at 28 by its sides 23 to the opposite sides of the casing? and at points spaced above the bottom thereof. The shell extends forwardly of the conveyer casing 7 and is downwardly in clined to position its scraping end in close proximity to the ground, thus leaving its inner end spaced from the bottom of the casing. The inner end of the bottom of the scoop shell 6 is slit at the junction with the sides 23 thereof and bent downwardly to form an apron 24. This apron has its lower edge cut to the contour of the bottom of the casing 7 and it is disposed over the open side thereof between the bottom of the scoop shell 6 to the adjacent part of the former;

Being pivoted the scoop shell 6 may readily swing upwardly around its pivots, thus moving its scraper end away from the ground. The'vertical or orbital movement of this part of the shell 6 is limited by stop arms 25, two of which are secured to the bottom of the shell and project toward the housing 7 to which they are loosely connected by means of headed retaining stops 26. A retractile spring 27 connecting the casing 7 and the scoop shell bottom 6 returns the scoop shell to itsnormal position after the same has ridden over or come into contact with an obstruction.

After an attachment such as above described is secured to the front end of a tractor as shown in Fig. 1, the operation of the same is substantially as follows: The tractor being moved forwardly shoves the scoop shell 6 into contact with the snow or other material thereby causing the latter to be directed into the casing 7 within reach of the fan blades 12. The provision of the apron 24 provides a very effective means for holding the snow within the casing 7 until the blades thereof may operate to eject the same through the outlet 10. The blades are obviously rotated through the instrumentality of the drive wheel 22 which is suitably connected thereto. A discharge spout or pipe 10' is pivoted to the free end of the outlet 10 and extends substantially horizontally and over the housing 7 so as to direct the snow to any desired position with respect to the cleaning machine. For instance by turning the discharge spout 10 in one direction, the snow will be thrown orblown to the side of the roadway, whereas if turned in another direction it may cause the snow to be deposited in a wagon or the like following along the side of the cleaning machine. After the snow is removed and the usefulness of the attachment at an end, it is readily removed from the tractor A simply by detaching the braces 16 and 17 and loosening the clips 15 so as to slide the bracket arms 14 outof the side bars 1 of the frame.

Various changes may be made in the form and proportion of the several parts of the attachment as well as in the manner of securing the same to a vehicle or other driving means, without departing from or sacrificing any of the advantages of the invention as outlined in the following claims:

I claim:

1. The combination with a vehicle, of a conveyer casing carried by the vehicle and having a portion of one side open, a scoop pivoted to the casing and extending downwardly and forwardly on the open side thereof, a spring urging the forward end of the scoop toward the ground, and a stop for positively limiting the upward movement of the scoop, the attached end of the scoop being spaced above the bottom of the casing, an apron depending from the attached end of the scoop to cover the open portion of the casing, and a conveyer in said casing.

2. The combination with a vehicle, of a U-shaped attaching bracket having its arms secured to said vehicle, a fan having one side open, the same having its closed side secured to the bracket, braces extending from the top and bottom of the casing to the vehicle frame, an outlet from the casing, a fan disposed for rotation in said casing and adapted to expel material through said out- .let, a scoop pivoted to the fanvcasing and extending downwardly and forwardly from the open side thereof, a spring urging the forward end of the scoop toward the ground, and a stop for positively limiting the upward movement of said scoop.

y In testimony that I claim the foregoing I l have hereunto set my hand at Hartland, in the county of Waukesha and State of Wisconsin.

FRAN K A. 

